(19)
(11) EP 1 436 540 A1

(12)

(43) Date of publication:
14.07.2004 Bulletin 2004/29

(21) Application number: 02799665.1

(22) Date of filing: 27.09.2002
(51) International Patent Classification (IPC)7F16L 11/04, F16L 11/12, B32B 1/08
(86) International application number:
PCT/US2002/030869
(87) International publication number:
WO 2003/027557 (03.04.2003 Gazette 2003/14)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 27.09.2001 US 325225 P

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington,Delaware 19898 (US)

(72) Inventors:
  • BERGEVIN, Kevin
    Kingston, Ontario K7M 4R1 (CA)
  • STEVENS, Kenneth, Earl
    Kingston, Ontario K7P 2P5 (CA)

(74) Representative: Gritschneder, Martin, Patentanwalt 
Abitz & PartnerPoschingerstrasse 6
81679 München
81679 München (DE)

   


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